iPhone hacker made iFAITH for MAC OS X. Ih8sn0w just released a new tool called iFaith for Mac OS X which dumps SHSH blobs for present iOS revision on iDevice and creates a pre-signed IPSW.

As you know, if you want to restore your iDevice to a previous iOS, the process will fail unless you have the blobs for that particular iOS version saved and use such tools as TinyUmbrella.

But, saving the blobs for an iOS version can only be done as long as Apple still signs that iOS. When a new iOS version is being released, Apple stops signing the previous version and if you didn’t save your blobs you can kiss your downgrade goodbye. Or that’s how it was until today. Because iFaith for Mac takes care of this problem.

If your iDevice is susceptible to the jailbreak (all iDevices except iPad 2, iPhone 3G and iPod Touch 2G) you can use iFaith to dump the blobs from the device.

For example, if your device is running a prior iOS to 4.3.3 ( latest release to date ), you can use iFaith to get the blobs for your iOS version even if Apple stopped signing it.

Waiting this new release..